ORAL MELANOTIC MACULE (OMM) (Also called focal melanosis labial melanotic macule) A benign, localized, flat pigmented lesion of the oral mucosa Caused by a focal increase in melanin production 8 year old boy, brought by mother with complaint of pigmentation on lips. No other relevant history in patient. Family history : father passed away due to some unknown disease at age Pigmented Lesions of the Oral Cavity Oral and Maxillofacial Surgery Clinics Pigmented Oral Lesions: Clues to Identifying the Potentially Malignant Consultant360 Black spot inside cheek: Pictures, causes, treatment, and more The dermatologic oral examination: Navigating the Oral Dermatoses Map Journal of the American Academy of Dermatology